Re: mtune=nocona

[Arjan van de Ven]

On Thu, 2005-06-09 at 15:28 +0100, P(a)draigBrady.com wrote:
>  Arjan van de Ven wrote:
>  > On Thu, Jun 09, 2005 at 10:15:48AM -0400, Dan Williams wrote:
>  > 
>  >>The question, distilled:
>  >>
>  >>Would you like: (a) Small speed hit for Opteron users, OR (b) much
>  >>larger speed hit for EM64T users?
>  > 
>  > note the hit is REALLY REALLY small. Hard to measure kind of small.
>  
>  Have you compared -march=k8 with -mtune=nocona ? 
I didn't personally, but our gcc guys did and they said it was hardly
measureable if at all.